Alright so I'm reporting back with some updated news..
My volts at the lowest dropped to 13.15, but most of the time went to 13.5 is that really that bad of a drop? I figured it wasn't bad enough for the amp to go into protect.
After setting the amp with a dmm, I cranked it up to the 75% volume on the HU we used when testing, and the amp went into protect. We added temporary ground to all of the weaker ones that we thought of just to see if it was a weak ground, but still no results. While it was playing, it hit real hard and was shaking the whole inside of my car, was great. Soon after went into protect tho. Ground isn't the problem nor is the voltage drop I don't think. So maybe a faulty amp? I wasn't clipping it because I set it at 41.5 volts and the voltage said to put it at 43.5 with the dmm, so I went safe and put it a little under.
For the meantime tho, I put the gain about halfway and it hasn't gone into protect yet. Still hits nice but I feel like it's not doing its full potential. Also, I can't crank it up 100% with my HU or it will go into protect, so I have to leave it at 75%. Example is at 21 is perfect on my HU before it starts distorting due to my crap speakers, but I have to keep it at 16 because it will go into protect any higher.
Everything is either at 0 or off. Treble, bass boost, etc.
is that your amp ground?
edit: i'm not sure what i'm seeing there, but i know it's not good...... there should be NOTHING inbetween the ring terminal and your ground spot.
Just drill a small hole in your frame, sand around it well, and use a sheet metal screw and a washer. Do the same thing for your big three grounds to your chassis, too!
possibly something wrong with the amp at this point? Post internals
09 Cobalt LT
Headunit -Alpine CDA-9887
Front Stage - PHD FB 6.1 PRO SIX M/B, FB 5.1 m/b, FB 1.1b tweets
Highs amp -Pheonix Gold Xenon 100.4 & 200.4
Sub stage - 2 DC M2 LVL 5 12s
Sub amp - 2 DC 5.0Ks
Electrical - Singer 270 alt, big 3 0/1 & 12g ofc audio technix, 2 XS d3400s
Deadener - 80 mill Audiotechnix deadener
"Trunk hit hard like Kimbo Slice"
TEAM DC AUDIO